- beauty
- industrial
Octadecenedioic acid
CAS 127999-30-8
Also registered as 1 other CAS number
20701-68-2
Concern score
Not assessed — no hazard data yet.
Octadecenedioic acid in plain language
Also known as 9-Octadecenedioic acid, (9Z)- · cis-9-Octadecenedioic acid · (9Z)-Octadec-9-enedioic acid · (Z)-octadec-9-enedioic acid · 9-OCTADECENEDIOIC acid, (z)- · C18:1 dioic acid
Show all 16 names
Octadecenedioate · (9Z)-9-OCTADECENEDIOIC acid · (Z)-9-OCTADECENE-1,18-DIOIC acid · (Z)-9-OCTADECENEDIOIC acid · 9-Octadecenedioic acid · 9Z-Octadecenedioic acid · O.d.a.white · Oristar odda · UNII-565ZMT5QRG · octadec-9-ene-1,18-dioic-acid
Used in cosmetics as an emulsifier.
- Emulsifying
- Emulsifier
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
Regulation
No restrictions found. Octadecenedioic acid appears in these published regulatory listings.
- Found in consumer products
- Industrial
EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Emulsifier.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Emulsifier.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Expert safety opinions
No expert opinion on file for Octadecenedioic acid. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
Evidence & sources
No graded research studies for Octadecenedioic acid yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
CosIng
regulatory · updated 2026-09-23
- Open →
EPA Chemical and Products Database
exposure · updated 2019-12-20
- Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
- Open →
FDA GSRS UNII
registry · updated 2026-02-26
- Open →
openFDA Substance
registry · updated 2026-05-24
- Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Reference links (1)
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Fragrance avoidance
Nothing to weigh for this context yet.
We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.
Where it has been recorded
How often EPA CPDat has listed Octadecenedioic acid in a product composition. These are source records, not Greenveil catalog products.
Named organisations
1
Typical roles
EmulsifyingEmulsifier
Found in these products
Cosmetic and personal-care products that list Octadecenedioic acid are shown first. Their ingredient lists include Octadecenedioic acid; each product's own rating depends on its whole formula, so it is shown on the product page, not here.
